Heterocycles. Part I. A new route to the synthesis of substituted 2-aminopyrimidines
作者:N. R. El-Rayyes
DOI:10.1002/jhet.5570190240
日期:1982.3
Heterocyclic aldehydes (A) reacted with alkyl aryl ketones (B) to give the corresponding 1,3-diaryl-2-propen-1-ones (Ia-1). Condensation of these chalcones with guanidine produced the corresponding 2-amino-4,6-diarylpyrimidines (IIa-1). The structure of all products was substantiated by chemical and spectroscopic methods.
OCTAHYDRO-INDOLIZINE AND QUINOLIZINE AND HEXAHYDRO-PYRROLIZINES
申请人:Apodaca Richard
公开号:US20090263322A1
公开(公告)日:2009-10-22
The invention features substituted fused bicyclic compounds, pharmaceutical compositions containing them, and methods of using them to treat or prevent histamine-mediated diseases and conditions.
Rhodium-Catalyzed Site-Selective <i>ortho</i>-C–H Activation: Enone Carbonyl Directed Hydroarylation of Maleimides
作者:Jin-Tao Yu、Rongzhen Chen、Hailang Jia、Changduo Pan
DOI:10.1021/acs.joc.8b02059
日期:2018.10.5
Enone carbonyl directed 1,4-addition of ortho-C-H bond in chalcones to maleimides was developed under the catalysis of Rh(III). This reaction furnished a variety of chalcone-based pharmacologically useful 3-arylated succinimide derivatives in good yields with excellent selectivity.
Pyrroles. XIII. Structure and Reactivity of N-Methyl-2-pyrrolealdehyde<sup>1</sup>